Insulator for suspended high-tension electric wires



Jan, 27. 1925.

A. RENAUDIN INSULATOR FOR SUSPENDED HIGH TENSION ELECTRIC WIRES Filed Feb, 26, 1921 W iilmazs'es Imam/101' 4 IIII I M Patented Jan. 27, 192.5.

ALFRED--RENAUDIN, OF' LYON. FRANCE.

INSULATOR FOR SUSPENDED HIGH-TENSION ELECTRIC WIRES.

Application filed February 26, 1921. Serial No. 448,115.

(GRANTED UNDER THE PROVISIONS OF THE ACT OF MARCH 3, 1921, 41 STAT. L, 1313.)

To all whom it come m.

Be it known that I, ALFRED RENAUDIN, a citizen of the French Republic, of Lyon, France, have invented certain new and useful Improvements in Insulators for Suspended High-Tension Electric lVires, of which the following is a specification.

This invention relates to improvements in insulators for suspended high tension electric wires.

The improved insulator is of the type known as a strain insulator, which can be connected up to form supple insulating chains by the connection of several insulating elements in series, the connection of two consecutive elements being effected by means of strands of metal wire or" a certain length passed through the two adjacent insulators and constituting a ligature, the two ends of the Wire being suitably connected together.

Such insulating elements comprise cup or disk-like members constructed of porcelain or the like, and in order to prevent rain water wetting the inner surfaces of said cuplike members and so cause creepage of current, it is known to provide the cup or disklike members with flanges designed to prevent the rain having access to the central part of the member in which the core supporting the wire ligature is housed.

The improved insulator is intended for use in horizontal chains.

The annexed drawings illustrate the invention.

Fig. 1 is a view partly in elevation and partly in longitudinal section of two in sulating elements mounted in the form of a horizontal chain.

Fig. 2 is an end view of an element.

The insulating element is arranged in such a way that in all the cases of employment even the most unfavourable: rain, fog, snow, etc.its insulating power is retained due to the provision of adequate protection.

To this effect, each insulating element constructed of porcelain, glass or any other insulating substance is constituted essentially of two cups 1 and 2 (Figs. 1 and 2) of substantially oval section connected at their bases so that the longest diameters of their mouths lie in planes at right angles to one another.

These cups comprise the insulating cores,

the channels 5 and 6 being for the passage of the ligature 18.

The distance between the channels 5 and 6 is relatively great to allow resistance to crushing and to allow of intimate drying of the core.

The protection against 'ain is obtained by providing the rims of the cups 1 and 2 with inwardly projecting flanges 3636 along their upper halves and outwardly pro jecting flanges 37-37 along their lower halves, and by providing in their interiors the inner cups 1 and 2 wit-h exteriorly flanged rims.

By this means the interior surfaces 11 11 and 10 oi? the cups bordering the spaces a and I), Fig. 1, will be kept dry as the rain, owing to the flange 36, cannot reach the surface 11, and any falling on the surface 11 will be drained ofl by the flange 37.

The object of arranging the cups 1 and 2 so that their mouths lie on planes at right angles to one another as described is that the one or other cup will be afforded more protection according to the direction in which the rain is falling.

The method of connecting two insulating elements by means of the ligature is as follows.

The ligature has at each end a loop and to connect two insulating elements in series the one loop 8 being in the position shown in Fig. 1 the other loop is passed through passage 6 and then through aperture 5 then brought back through passage 6 in the reverse direction and back again through 5 till it coincides with loop 8. This second loop is then divided into two and then the two parts thus obtained 7 and 7 are separated to leave place for the other loop 8 which is engaged between them. The mechanical connection is obtained by passing through the loops a pin 4 of any shape which is maintained in place by any suitable means for instance by means of two exterior washers 3 and 9.

What I claim as my invention and desire to secure by Letters Patent of the United States is An insulator of the character described comprising a member in the term of two horizontally arranged oviform cups connected together at their bases so that the longest diameters of their mouths lie in planes at right angles to one another, inwardly projecting flanges along the upper halves of the rims of said cups, outwardly projecting flanges along the lower halves thereof, further oviform cups in said first mentioned cups, and integral therewith at their bases, outwardly projecting flanges along the rims of said latter oviform cups, and a transverse core Within and integral with one of said latter cups.

In Witness whereof I have signed this specification in the presence of two witnesses.

ALFRED RENAUDIN.

Witnesses:

GUILLAUME P001112, JULIAN KEMBLE SMEDLEY. 

